Nonlinear detection of spectrally coded ultrashort pulse by two-photon absorption GaAs waveguide photodetectors

Author

Zheng, Zhengguang ; Sardesai, Harshad ; Chang, C.C. ; Shen, Shikui ; Weiner, Andrew M. ; Marsh, John H. ; Karkanehchi, M.M.

Author_Institution

Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA

fYear

1998

fDate

3-8 May 1998

Firstpage

97

Lastpage

98

Abstract

Summary form only given. Our results confirm the strong intensity and pulsewidth dependence of the photocurrent from two photon absorption (TPA) waveguide photodetectors for ultrashort pulses with strong phase and amplitude modulations. We can expect the application of similar devices as the ultrafast optical thresholders for CDMA and other ultrafast network applications.

Keywords

III-V semiconductors; amplitude modulation; code division multiple access; gallium arsenide; high-speed optical techniques; optical fibre networks; optical modulation; optical signal detection; optical waveguides; photodetectors; pulse modulation; CDMA; GaAs waveguide photodetectors; amplitude modulations; nonlinear detection; photocurrent; pulsewidth dependence; spectrally coded ultrashort pulse; strong intensity; strong phase; two photon absorption waveguide photodetectors; two-photon absorption; ultrafast network applications; ultrafast optical thresholders; ultrashort pulses; Absorption; Amplitude modulation; Nonlinear optical devices; Nonlinear optics; Optical pulses; Optical waveguides; Photoconductivity; Photodetectors; Pulse modulation; Space vector pulse width modulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on

Conference_Location

San Francisco, CA, USA

Print_ISBN

1-55752-339-0

Type

conf

DOI

10.1109/CLEO.1998.675916

Filename

675916